– Lat/Long: 48.71° N 121.99° W
South Twin Sister Weather Forecast
Cascade Range · United StatesIssued: 4 pm Sat 10 Oct Local Time
Updates in:
Update imminent hr min s
Issued: 4 pm Sat 10 Oct Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummarySome drizzle, heaviest during Sat afternoon. Very mild (max 12°C on Sun afternoon, min 5°C on Sat night). Wind will be generally light. | Days 5–7 Weather SummaryLight rain (total 4mm), mostly falling on Wed morning. Very mild (max 18°C on Fri morning, min 10°C on Tue afternoon). Wind will be generally light. | ||||||||||||||||
Sat 10 | Sunday 11 | Monday 12 | Tuesday 13 | Wednesday 14 | Thursday 15 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | |  | | |  |  |  |  |  | | | | | | |
rain shwrs | rain shwrs | clear | clear | clear | clear | clear | some clouds | some clouds | cloudy | light rain | light rain | light rain | some clouds | some clouds | some clouds | some clouds | |
Cloud base (m) | 1650 | 2400 | 1800 | 800 | 600 | 650 | 750 | 6950 | 6450 | 8550 | |||||||
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | 1.6 | 0.1 | — | — | — | — | — | — | — | — | 0.6 | 1.8 | 1.2 | — | — | — | — |
max °C | 10 | 7 | 10 | 12 | 8 | 10 | 12 | 8 | 11 | 11 | 10 | 11 | 12 | 12 | 15 | 17 | 15 |
min °C | 9 | 5 | 5 | 11 | 6 | 6 | 11 | 7 | 9 | 10 | 10 | 11 | 11 | 10 | 10 | 17 | 14 |
chill °C | 8 | 4 | 4 | 11 | 6 | 6 | 11 | 7 | 9 | 10 | 10 | 11 | 11 | 10 | 10 | 17 | 14 |
Freezing level m | 1800 | 1850 | 1900 | 2150 | 2700 | 3300 | 3350 | 3200 | 2800 | 2750 | 2650 | 2950 | 3250 | 3700 | 3700 | 3750 | 3750 |
 | — | — | 7:20 | — | — | 7:22 | — | — | 7:24 | — | — | 7:26 | — | — | 7:26 | — | — |
 | 6:29 | — | — | 6:27 | — | — | 6:24 | — | — | 6:22 | — | — | 6:21 | — | — | 6:19 | — |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Some drizzle, heaviest during Sat afternoon. Very mild (max 12°C on Sun afternoon, min 5°C on Sat night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Light rain (total 4mm), mostly falling on Wed morning. Very mild (max 18°C on Fri morning, min 10°C on Tue afternoon). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.
| Weather Station | Temp. | Weather | Wind | Gusts | Cloud / Visibility |
|---|---|---|---|---|---|
SHIP3694 | |||||
 | |||||
Bellingham Airport | | ||||
SHIP10979 | |||||
SHIP4899 | |||||
SHIP3694 | |||||
SHIP5100 | |||||
SHIP6058 |
* NOTE: not all weather observatories update at the same frequency which is the reason why some locations may show data from stations that are further away than known closer ones.